Heat maybe or a bad connection from the cell to the terminal. I'd
talk to the manufacturer about it.....loudly!
Skip
At 05:54 AM 11/3/2006, Jon Wennerberg wrote:
>Yesterday I brought all four batteries inside - from our semi
>tractor - to clean and charge 'em. I wasn't able to get them to
>take enough charge to start the truck outdoors. One, or two, or
>maybe even three of them probably will need replacing, based on what
>I've discovered.
>But one thing I found has me wondering why it happens. Maybe one or
>more of you can help.
>
>These are 1000 CCA 12V lead-acid batteries. At least three of them
>have four or five good cells -- and one dead one. And in each of
>those it's the last cell -- the one nearest the negative
>terminal. A floating-ball specific gravity tester shows four or
>five floaters in the good cells, but that last one has (what must
>be) darn near drinking water inside -- the balls drop like rocks.
>
>Okay, the cell is dead and won't take a charge. Why is it that
>particular cell that went dead (vs. one of the cells mid-way through
>the battery, maybe)?
>
> Jon Wennerberg
>Seldom Seen Slim Land Speed Racing
> Marquette, Michigan
> (that's 'way up north)
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